I had the 5th grade teacher from hell. I could write a book. She was pretty bad for everyone, but for some reason she didnât like me at all. I was probably a âknow it all,â but give me a break. My frontal lobe had not developed yet, so I didnât know how to graciously correct a teacher who pronounced âinfraredâ as âin-FRAYER-d,â or who thought Columbus landed in Florida.
Superior oblique muscle. The superior oblique muscle, or obliquus oculi superior, is a fusiform muscle originating in the upper, medial side of the orbit (i.e. from beside the nose) which abducts, depresses and internally rotates the eye. It is the only extraocular muscle innervated by the trochlear nerve (the fourth cranial nerve).
These constrictions are: 1  At the start of the esophagus, where the laryngopharynx joins the esophagus, behind the cricoid cartilage. 2  Where it is crossed on the front by the aortic arch in the superior mediastinum. 3  Where the esophagus is compressed by the left main bronchus in the posterior mediastinum.